redjohnuk Posted March 11, 2018 Share Posted March 11, 2018 hi, over the last couple of years I’ve now fitted 3 of the standard TPS units to my Mega Grad 1600k track day car. I’d like to get some opinions as to others experiences and solutions. Some of the standard units don’t even have slots to be able to adjust them. Thanks Link to comment Share on other sites More sharing options...
Alan Reeves Posted March 11, 2018 Share Posted March 11, 2018 ive no idea but...why did you fit 3? Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted March 11, 2018 Leadership Team Share Posted March 11, 2018 Why do you need to adjust them? Surely when fitted you make the adjustments in the ecu to reset it ... I think with the k-series it's "ignition on / floor the throttle 4 times / ignition off" and the tps will be reset.Stu. Link to comment Share on other sites More sharing options...
revilla Posted March 11, 2018 Share Posted March 11, 2018 As above for MEMS3 but I'm pretty sure it needs five times to recalibrate not four. Link to comment Share on other sites More sharing options...
redjohnuk Posted March 11, 2018 Author Share Posted March 11, 2018 Hi, think your right Revilla it is 5, but my understanding is that there is an optimum voltage output of .43v required that initiates the Ecu to make the necessary fueling adjustments. The reason I’ve fitted 3 is that the first 2 failed fairly quickly with zero resistance in the spindle. Link to comment Share on other sites More sharing options...
revilla Posted March 11, 2018 Share Posted March 11, 2018 I think what you are quoting applies to ECUs other than standard MEMS where the map sets a specific voltage and the TPS is then adjusted to match. Standard MEMS ECUs work the other way, you calibrate the ECU to match the TPS. It really makes no difference what the voltage is, so long as the ECU knows what voltage corresponds to idle and full throttle. Even with other ECUs, it doesn't matter what voltage the maps sets, it's down to the preference of the tuner, you just then adjust the TPS to agree. Link to comment Share on other sites More sharing options...
CharlesElliott Posted March 12, 2018 Share Posted March 12, 2018 The issue is the vibration from the metal plenum killing the sensor. You need to insulate the TPS from the aluminium body with some rubber. Link to comment Share on other sites More sharing options...
rj Posted March 12, 2018 Share Posted March 12, 2018 Gill sensors will be your friend. Link to comment Share on other sites More sharing options...
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